67427540 has 48 divisors (see below), whose sum is σ = 144789120. Its totient is φ = 26371200.

The previous prime is 67427537. The next prime is 67427543. The reversal of 67427540 is 4572476.

It is an interprime number because it is at equal distance from previous prime (67427537) and next prime (67427543).

It is a self number, because there is not a number n which added to its sum of digits gives 67427540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67427543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250526 + ... + 250794.

It is an arithmetic number, because the mean of its divisors is an integer number (3016440).

Almost surely, 2^67427540 is an apocalyptic number.

It is an amenable number.

67427540 is an abundant number, since it is smaller than the sum of its proper divisors (77361580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67427540 is a wasteful number, since it uses less digits than its factorization.

67427540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512 (or 510 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 35.

The square root of 67427540 is about 8211.4274033203. The cubic root of 67427540 is about 407.0168964727.

The spelling of 67427540 in words is "sixty-seven million, four hundred twenty-seven thousand, five hundred forty".